Is your meter DC or AC?
All DC, an old Myron L. No inverters inside either.
cmor1701d said:My tap water is between 180 -230 ppm on my tds meter. My RO water is normally around 10 and the final output from the DI is 0.
The factors I've seen most used is from 0.5 to 0.7 ppm per uS/cm. If a meter is to be used at higher range conductivities I've seen factors closer to unity or above. I am guessing your TDS is using the former, unless you have really nasty tap water. That would make your conductivity roughly 400 uS/cm, give or take.
cmor1701d said:Please define "decanting' for us. I'm not sure if you are referring to a PWC (partial water change)
Exactly. Perhaps a poor choice since technically decanting is allowing solids to settle from a liquid and then pulling the clarified fluid from the top. However, in industry it is commonly used to mean the deliberate discarding of solution and making up with cleaner material in order to reduce contamination levels.
cmor1701d said:Two weeks is a very long time to go without maintenance. What will you do for top off water for the evaporation during that period. What about feeding?
I was referring to 'major' maintenance. When we travel we have sitters come and tend the existing menagerie. I would have to find a person that would be able to do SW basics; replacing evaporative losses, feeding, etc. Maybe a quick spot check of a parameter or two. But doing a PWC, I would not be comfortable with anyone but an experienced SW person doing that. The whole concept of a sump/refugium is becoming more and more appealing as I think about it. I have the room, the whole bottom shelf of the stand in fact.